HMCS Corner Brook grounding incident, June 2011

The following Victoria-class Submarine schematic depicts the general impact area on the bow of Her Majesty's Canadian Submarine (HMCS) Corner Brook as a result of a grounding incident. Corner Brook ran aground while conducting submerged manoeuvres during submarine officer training in the vicinity of Nootka Sound on the west coast of Vancouver Island on June 4, 2011.

The BLUE area represents damage to Corner Brook's fibreglass bow dome which covers the sonar array that is external to the pressure hull. An initial "in-water" damage assessment indicated some damage to the fibreglass bow dome, which could mean that there may be damage to the sonar array it contains as well as a minor leak in a forward ballast tank. The watertight integrity of the submarine, specifically the pressure hull, remained intact and at no time were the crew in danger after the grounding incident.

A determination of the full extent of the damage will be made during the upcoming docked Extended Limited Maintenance Period (ELWP). The repairs themselves will be performed during Corner Brook's scheduled Victoria In-Service Support Contact (VISSC) Extended Docking Work Period (EDWP) at Victoria Shipyards Co. Ltd., commencing in 2013, upon completion of HMCS Chicoutimi's EDWP.